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                ## isatty ## 判斷文件描述詞是否是為終端機 ### 相關函數 ### ttyname ### 表頭文件 ### ``` #include<unistd.h> ``` ### 定義函數 ### ``` int isatty(int desc); ``` ### 函數說明 ### ``` 如果參數desc所代表的文件描述詞為一終端機則返回1,否則返回0。 ``` ### 返回值 ### 如果文件為終端機則返回1,否則返回0。 ### 范例 ### 參考ttyname()。
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